Single coloumn if columns = 1

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Riccardo Rossi
Riccardo Rossi 2018-12-4
评论： Riccardo Rossi 2018-12-4
Hi everyone, i have a logical array P 378812x400 logical.
I want to create a single column that has the value of row 1 if in the 400 columns at least 1 row was 1.
I tried with this, but it does not run:
N=400
for j=1:N-1
for i=2:N
Q=or(P(:,j), P (:,i));
end
end
Thank you.
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回答（2 个）

KSSV
KSSV 2018-12-4
P = round(rand(10,3)) ;
idx = find(any(P,2))
Read about any
madhan ravi
madhan ravi 2018-12-4
Q=sum(P,2)

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